Is this Ruer handgun to old to dry-fire?
 

Ruger advertises that their rim-fire firearms are safe to dry fire. I have a Ruger “Standard” pistol (the predecessor to the Mark 1) purchase between 1976-1978. Does any one know if this handgun is safe to dry fire, or was it made before Ruger rim-fire firearms are safe to dry fire?

I am not familiar with the Ruger advertising of which you speak, but I cannot see how a rimfire could be designed in such a way that dry firing would not damage the rim of the chamber. I advise against it.

All Ruger rimfires can be dry fired without damaging the chamber, I think that statement is what you read.

However, like all guns, dry firing will eventually peen over steel parts that are allowed to slam together without the softening effect of a steel to brass impact. You should not set about dry firing any gun for thousands of rounds unless you have snap caps or some method of stopping the firing pin from striking the rear of it's well.
Ed

Darn,.. Thats what I was afraid of:(